Finding the Fourth Proportional to 87,221,498.66, 120,366,475.38 and 48,064,676.70
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Solution
The fourth proportional to 87,221,498.66, 120,366,475.38 and 48,064,676.70 is: 66,329,698.69
Step by Step Solution
- Step 1: Write the proportion equation
87,221,498.66 : 120,366,475.38 = 48,064,676.70 : x - Step 2: Convert to fraction form
87,221,498.66/120,366,475.38 = 48,064,676.70/x - Step 3: Cross multiply
87,221,498.66x = 120,366,475.38 × 48,064,676.70 - Step 4: Simplify right side
87,221,498.66x = 5,785,375,724,658,210 - Step 5: Solve for x
x = 5,785,375,724,658,210/87,221,498.66 - Step 6: Final answer
x = 66,329,698.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.